// For flags

CVE-2024-37305

Buffer overflow in deserialization in oqs-provider

Severity Score

8.2
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

oqs-provider is a provider for the OpenSSL 3 cryptography library that adds support for post-quantum cryptography in TLS, X.509, and S/MIME using post-quantum algorithms from liboqs. Flaws have been identified in the way oqs-provider handles lengths decoded with DECODE_UINT32 at the start of serialized hybrid (traditional + post-quantum) keys and signatures. Unchecked length values are later used for memory reads and writes; malformed input can lead to crashes or information leakage. Handling of plain/non-hybrid PQ key operation is not affected. This issue has been patched in in v0.6.1. All users are advised to upgrade. There are no workarounds for this issue.

oqs-provider es un proveedor de la librería de criptografía OpenSSL 3 que agrega soporte para criptografía poscuántica en TLS, X.509 y S/MIME utilizando algoritmos poscuánticos de liboqs. Se han identificado fallas en la forma en que oqs-provider maneja las longitudes decodificadas con DECODE_UINT32 al inicio de firmas y claves híbridas serializadas (tradicionales + poscuánticas). Los valores de longitud no verificados se utilizan posteriormente para lecturas y escrituras de memoria; La entrada mal formada puede provocar fallas o fugas de información. El manejo de la operación de clave PQ simple/no híbrida no se ve afectado. Este problema se solucionó en la versión 0.6.1. Se recomienda a todos los usuarios que actualicen. No existen workarounds para este problema.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-06-05 CVE Reserved
  • 2024-06-17 CVE Published
  • 2024-06-18 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
  • CWE-130: Improper Handling of Length Parameter Inconsistency
  • CWE-190: Integer Overflow or Wraparound
  • CWE-680: Integer Overflow to Buffer Overflow
  • CWE-805: Buffer Access with Incorrect Length Value
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Open-quantum-safe
Search vendor "Open-quantum-safe"
 Oqs-provider
Search vendor "Open-quantum-safe" for product "Oqs-provider"
 < 0.6.1
Search vendor "Open-quantum-safe" for product "Oqs-provider" and version " < 0.6.1"
en
Affected